### Install and Start RKE2 Server Source: https://docs.rke2.io/advanced Install RKE2 using the provided curl script and then enable and start the RKE2 server systemd service. Logs can be viewed using journalctl. ```bash curl -sfL https://get.rke2.io | sh - systemctl enable rke2-server systemctl start rke2-server ``` -------------------------------- ### Install RKE2 Source: https://docs.rke2.io/datastore/embedded This command downloads and installs the RKE2 binary. It is a prerequisite for starting the RKE2 server service. ```bash curl -sfL https://get.rke2.io | sh - ``` -------------------------------- ### Install Latest RKE2 Version using Tar Method Source: https://docs.rke2.io/install/configuration This example demonstrates installing the latest RKE2 version using the tar installation method by specifying `-Channel Latest` and `-Method Tar`. ```powershell Invoke-WebRequest -Uri https://raw.githubusercontent.com/rancher/rke2/master/install.ps1 -Outfile install.ps1 ./install.ps1 -Channel Latest -Method Tar ``` -------------------------------- ### Example kube-controller-manager arguments Source: https://docs.rke2.io/security/cis_self_assessment111 This is an example output showing the arguments passed to the kube-controller-manager. Ensure '--use-service-account-credentials=true' is present. ```bash UID PID PPID C STIME TTY TIME CMD root 18380 2666 1 16:15 ? 00:00:04 kube-controller-manager --permit-port-sharing=true --flex-volume-plugin-dir=/var/lib/kubelet/volumeplugins --terminated-pod-gc-threshold=1000 --allocate-node-cidrs=true --authentication-kubeconfig=/var/lib/rancher/rke2/server/cred/controller.kubeconfig --authorization-kubeconfig=/var/lib/rancher/rke2/server/cred/controller.kubeconfig --bind-address=127.0.0.1 --cluster-cidr=10.42.0.0/16 --cluster-signing-kube-apiserver-client-cert-file=/var/lib/rancher/rke2/server/tls/client-ca.nochain.crt --cluster-signing-kube-apiserver-client-key-file=/var/lib/rancher/rke2/server/tls/client-ca.key --cluster-signing-kubelet-client-cert-file=/var/lib/rancher/rke2/server/tls/client-ca.nochain.crt --cluster-signing-kubelet-client-key-file=/var/lib/rancher/rke2/server/tls/client-ca.key --cluster-signing-kubelet-serving-cert-file=/var/lib/rancher/rke2/server/tls/server-ca.nochain.crt --cluster-signing-kubelet-serving-key-file=/var/lib/rancher/rke2/server/tls/server-ca.key --cluster-signing-legacy-unknown-cert-file=/var/lib/rancher/rke2/server/tls/server-ca.nochain.crt --cluster-signing-legacy-unknown-key-file=/var/lib/rancher/rke2/server/tls/server-ca.key --configure-cloud-routes=false --controllers=*,tokencleaner,-service,-route,-cloud-node-lifecycle --kubeconfig=/var/lib/rancher/rke2/server/cred/controller.kubeconfig --profiling=false --root-ca-file=/var/lib/rancher/rke2/server/tls/server-ca.crt --secure-port=10257 --service-account-private-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --tls-cert-file=/var/lib/rancher/rke2/server/tls/kube-controller-manager/kube-controller-manager.crt --tls-private-key-file=/var/lib/rancher/rke2/server/tls/kube-controller-manager/kube-controller-manager.key --use-service-account-credentials=true ``` -------------------------------- ### Install RKE2 Server on Linux Source: https://docs.rke2.io/install/quickstart Installs the rke2-server service and rke2 binary. Must be run as root or with sudo. ```bash curl -sfL https://get.rke2.io | sh - ``` -------------------------------- ### Kubelet Configuration Example Source: https://docs.rke2.io/security/cis_self_assessment111 This is an example of the Kubelet configuration file, showing the structure and settings. Verify that '.authentication.anonymous.enabled' is set to 'false'. ```yaml address: 0.0.0.0 apiVersion: kubelet.config.k8s.io/v1beta1 authentication: anonymous: enabled: false webhook: cacheTTL: 2m0s enabled: true x509: clientCAFile: /var/lib/rancher/rke2/agent/client-ca.crt authorization: mode: Webhook webhook: cacheAuthorizedTTL: 5m0s cacheUnauthorizedTTL: 30s cgroupDriver: systemd clusterDNS: - 10.43.0.10 clusterDomain: cluster.local containerRuntimeEndpoint: unix:///run/k3s/containerd/containerd.sock cpuManagerReconcilePeriod: 10s crashLoopBackOff: {} evictionHard: imagefs.available: 5% nodefs.available: 5% evictionMinimumReclaim: imagefs.available: 10% nodefs.available: 10% evictionPressureTransitionPeriod: 5m0s failSwapOn: false fileCheckFrequency: 20s healthzBindAddress: 127.0.0.1 httpCheckFrequency: 20s imageMaximumGCAge: 0s imageMinimumGCAge: 2m0s kind: KubeletConfiguration logging: flushFrequency: 5s format: text options: json: infoBufferSize: "0" text: infoBufferSize: "0" verbosity: 0 memorySwap: {} nodeStatusReportFrequency: 5m0s nodeStatusUpdateFrequency: 10s protectKernelDefaults: true resolvConf: /run/systemd/resolve/resolv.conf runtimeRequestTimeout: 2m0s serializeImagePulls: false shutdownGracePeriod: 0s shutdownGracePeriodCriticalPods: 0s staticPodPath: /var/lib/rancher/rke2/agent/pod-manifests streamingConnectionIdleTimeout: 4h0m0s syncFrequency: 1m0s tlsCertFile: /var/lib/rancher/rke2/agent/serving-kubelet.crt tlsPrivateKeyFile: /var/lib/rancher/rke2/agent/serving-kubelet.key volumeStatsAggPeriod: 1m0s ``` -------------------------------- ### Example kube-apiserver arguments Source: https://docs.rke2.io/security/cis_self_assessment17 This is an example of the arguments passed to the kube-apiserver process, showing enabled admission plugins. ```bash UID PID PPID C STIME TTY TIME CMD root 2511 2457 9 18:52 ? 00:00:23 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --feature-gates=JobTrackingWithFinalizers=true --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Example Image List File Source: https://docs.rke2.io/add-ons/import-images This is an example of the `example.txt` file format used for pre-importing images. Each line should contain a single image name. ```text docker.io/library/redis:latest docker.io/library/mysql:latest ``` -------------------------------- ### Start RKE2 Server Service Source: https://docs.rke2.io/install/quickstart Starts the rke2-server service. ```bash systemctl start rke2-server.service ``` -------------------------------- ### Install RKE2 using the install script Source: https://docs.rke2.io/install/methods This command downloads and executes the RKE2 installation script, which automatically detects the system type and performs the appropriate installation (tarball or RPM). ```bash curl -sfL https://get.rke2.io | sudo sh - ``` ```bash curl -sfL https://get.rke2.io | sh - ``` -------------------------------- ### Install RKE2 using the get.rke2.io script Source: https://docs.rke2.io/install/configuration This command installs RKE2 using the official installation script. It can be run as root or with sudo. Ensure you have curl installed. ```bash # curl -sfL https://get.rke2.io | sudo sh - ``` ```bash curl -sfL https://get.rke2.io | sh - ``` -------------------------------- ### Kubelet Process Arguments Example Source: https://docs.rke2.io/security/cis_self_assessment19 This is an example of the output from auditing kubelet process arguments, showing various configured flags. ```bash UID PID PPID C STIME TTY TIME CMD root 2592 2508 2 18:32 ? 00:00:41 kubelet --volume-plugin-dir=/var/lib/kubelet/volumeplugins --file-check-frequency=5s --sync-frequency=30s --address=0.0.0.0 --anonymous-auth=false --authentication-token-webhook=true --authorization-mode=Webhook --cgroup-driver=systemd --client-ca-file=/var/lib/rancher/rke2/agent/client-ca.crt --cloud-provider=external --cluster-dns=10.43.0.10 --cluster-domain=cluster.local --container-runtime-endpoint=unix:///run/k3s/containerd/containerd.sock --containerd=/run/k3s/containerd/containerd.sock --eviction-hard=imagefs.available<5%,nodefs.available<5% --eviction-minimum-reclaim=imagefs.available=10%,nodefs.available=10% --fail-swap-on=false --feature-gates=CloudDualStackNodeIPs=true --healthz-bind-address=127.0.0.1 --hostname-override=server-0 --kubeconfig=/var/lib/rancher/rke2/agent/kubelet.kubeconfig --node-ip=10.10.10.100 --node-labels= --pod-infra-container-image=index.docker.io/rancher/mirrored-pause:3.6 --pod-manifest-path=/var/lib/rancher/rke2/agent/pod-manifests --protect-kernel-defaults=true --read-only-port=0 --resolv-conf=/run/systemd/resolve/resolv.conf --serialize-image-pulls=false --tls-cert-file=/var/lib/rancher/rke2/agent/serving-kubelet.crt --tls-private-key-file=/var/lib/rancher/rke2/agent/serving-kubelet.key ``` -------------------------------- ### Start RKE2 Server Service Source: https://docs.rke2.io/datastore/embedded Start the RKE2 server service to initialize the cluster. Monitor `kubectl get nodes` for the server to reach the `Ready` status. ```bash systemctl start rke2-server.service ``` -------------------------------- ### Start RKE2 Agent Service Source: https://docs.rke2.io/install/quickstart Starts the rke2-agent service. ```bash systemctl start rke2-agent.service ``` -------------------------------- ### Install RKE2 Using Local Artifacts Source: https://docs.rke2.io/install/airgap Execute the RKE2 install script with the `INSTALL_RKE2_ARTIFACT_PATH` environment variable pointing to the directory containing the downloaded artifacts. This enables offline installation. ```bash INSTALL_RKE2_ARTIFACT_PATH=/root/rke2-artifacts sh install.sh ``` -------------------------------- ### Example kube-apiserver process output Source: https://docs.rke2.io/security/cis_self_assessment19 This is an example output from the 'ps' command, showing the kube-apiserver process and its arguments, including '--etcd-cafile'. ```bash UID PID PPID C STIME TTY TIME CMD root 2840 2791 5 18:32 ? 00:01:35 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Example kube-apiserver arguments with client cert/key Source: https://docs.rke2.io/security/cis_self_assessment17 This output shows an example of the kube-apiserver command line arguments, including the --kubelet-client-certificate and --kubelet-client-key flags. ```bash UID PID PPID C STIME TTY TIME CMD root 2511 2457 9 18:52 ? 00:00:23 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --feature-gates=JobTrackingWithFinalizers=true --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Start RKE2 Service Source: https://docs.rke2.io/datastore/backup_restore Use this command to start the RKE2 server service after a snapshot restore. ```bash systemctl start rke2-server ``` -------------------------------- ### Example kube-apiserver arguments output Source: https://docs.rke2.io/security/cis_self_assessment19 This is an example of the output from the 'ps' command, showing the arguments passed to the kube-apiserver, including the --audit-log-path. ```text UID PID PPID C STIME TTY TIME CMD root 2840 2791 5 18:32 ? 00:01:35 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=127.0.0.1:2379 --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Download RKE2 Install Script for Windows Source: https://docs.rke2.io/install/quickstart Downloads the install.ps1 script to the local machine for installing the RKE2 Windows binary. ```powershell Invoke-WebRequest -Uri https://raw.githubusercontent.com/rancher/rke2/master/install.ps1 -Outfile install.ps1 ``` -------------------------------- ### Download and make RKE2 install script executable Source: https://docs.rke2.io/install/methods Alternatively, download the install script first and then make it executable before running it. This provides an intermediate step for review or modification. ```bash curl -sfL https://get.rke2.io --output install.sh chmod +x install.sh ``` -------------------------------- ### Example kube-apiserver arguments Source: https://docs.rke2.io/security/cis_self_assessment19 This output shows an example of the kube-apiserver command line arguments. Verify that '--authorization-mode' contains 'Node,RBAC'. ```text UID PID PPID C STIME TTY TIME CMD root 2840 2791 5 18:32 ? 00:01:35 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Run the RKE2 Installer Script Source: https://docs.rke2.io/install/quickstart Executes the RKE2 installation script. This command assumes the script is in the current directory. ```powershell ./install.ps1 ``` -------------------------------- ### Example kube-apiserver command line with kubelet-certificate-authority Source: https://docs.rke2.io/security/cis_self_assessment19 This is an example of the full command line for the kube-apiserver, showing the --kubelet-certificate-authority argument and its associated certificate authority file path. ```bash root 2840 2791 5 18:32 ? 00:01:35 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Example kube-apiserver command with etcd-cafile Source: https://docs.rke2.io/security/cis_self_assessment18 This is an example of the kube-apiserver command output showing the --etcd-cafile argument correctly set. ```bash root 2550 2500 12 19:13 ? 00:00:15 kube-apiserver --admission-control-config-file=/etc/rancher/rke2/rke2-pss.yaml --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Example kube-apiserver arguments Source: https://docs.rke2.io/security/cis_self_assessment124 This is an example of the output from the audit command, showing the arguments passed to the kube-apiserver. Check for the presence or absence of '--disable-admission-plugins' and its associated values. ```bash UID PID PPID C STIME TTY TIME CMD root 2539 2487 4 17:27 ? 00:01:20 kube-apiserver --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction,PodSecurityPolicy --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --feature-gates=JobTrackingWithFinalizers=true --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ``` -------------------------------- ### Example kube-apiserver Command Line Arguments Source: https://docs.rke2.io/security/cis_self_assessment124 This output shows an example of the full command line arguments for the kube-apiserver, including the --anonymous-auth=false setting. ```bash UID PID PPID C STIME TTY TIME CMD root 2539 2487 4 17:27 ? 00:01:20 kube-apiserver --audit-policy-file=/etc/rancher/rke2/audit-policy.yaml --audit-log-maxage=30 --audit-log-maxbackup=10 --audit-log-maxsize=100 --audit-log-path=/var/lib/rancher/rke2/server/logs/audit.log --advertise-address=10.10.10.100 --allow-privileged=true --anonymous-auth=false --api-audiences=https://kubernetes.default.svc.cluster.local,rke2 --authorization-mode=Node,RBAC --bind-address=0.0.0.0 --cert-dir=/var/lib/rancher/rke2/server/tls/temporary-certs --client-ca-file=/var/lib/rancher/rke2/server/tls/client-ca.crt --egress-selector-config-file=/var/lib/rancher/rke2/server/etc/egress-selector-config.yaml --enable-admission-plugins=NodeRestriction,PodSecurityPolicy --enable-aggregator-routing=true --enable-bootstrap-token-auth=true --encryption-provider-config=/var/lib/rancher/rke2/server/cred/encryption-config.json --etcd-cafile=/var/lib/rancher/rke2/server/tls/etcd/server-ca.crt --etcd-certfile=/var/lib/rancher/rke2/server/tls/etcd/client.crt --etcd-keyfile=/var/lib/rancher/rke2/server/tls/etcd/client.key --etcd-servers=https://127.0.0.1:2379 --feature-gates=JobTrackingWithFinalizers=true --kubelet-certificate-authority=/var/lib/rancher/rke2/server/tls/server-ca.crt --kubelet-client-certificate=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.crt --kubelet-client-key=/var/lib/rancher/rke2/server/tls/client-kube-apiserver.key --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname --profiling=false --proxy-client-cert-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.crt --proxy-client-key-file=/var/lib/rancher/rke2/server/tls/client-auth-proxy.key --requestheader-allowed-names=system:auth-proxy --requestheader-client-ca-file=/var/lib/rancher/rke2/server/tls/request-header-ca.crt --requestheader-extra-headers-prefix=X-Remote-Extra- --requestheader-group-headers=X-Remote-Group --requestheader-username-headers=X-Remote-User --secure-port=6443 --service-account-issuer=https://kubernetes.default.svc.cluster.local --service-account-key-file=/var/lib/rancher/rke2/server/tls/service.key --service-account-signing-key-file=/var/lib/rancher/rke2/server/tls/service.current.key --service-cluster-ip-range=10.43.0.0/16 --service-node-port-range=30000-32767 --storage-backend=etcd3 --tls-cert-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.crt --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 --tls-private-key-file=/var/lib/rancher/rke2/server/tls/serving-kube-apiserver.key ```